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Traveling Wave Tubes (TWTs) — Space
L3’s space traveling wave tubes (TWTs) are key components for communications satellites. L3 EDD has delivered more than 4,700 space TWTs and has over five decades of experience developing TWTs for space-based applications.
K-Band TWT
Ku-Band TWT
TWT Overview
Model Band Pout Approx. Efficiency Approx. Mass Delivered In Orbit
83200H L 80 to 250 W 63 to 70% 3500 g 4 4
8412HxR S 100 to 140 W 62 to 65% 1270 g 573 343
84250Hx/HxR S 200 to 300 W 65 to 74% 3200/3550 g 82 0
8555Hx C 20 to 120 W 65 to 69% 790 g 701 627
85100HxR C 80 to 140 W 64 to 68% 1165 g 16 12
86160Hx X 40 to 160 W 63 to 67% 895 g 201 156
86160HxR X 100 to 160 W 64 to 69% 1250 g 39 19
88150Hx Ku 35 to 205 W 60 to 71% 695 g 416 310
88150HxR Ku 35 to 180 W 60 to 71% 950 g 2,195 1,622
9110Hx* K 40 to 140 W 58 to 68% 770 g 110 35
9110HxR* K 40 to 140 W 63 to 68% 995 g 343 70
9250Hx/HxR K 150 to 300 W 63 to 68% 1400/1700 g 0 0
99xxH Ka/Q/V 10 to 200 W 30 to 60% 1500 g 36 5
TOTAL 4,719 3,203
* - 9110Hx/HxR quantities include the 9100Hx/HxR
Modern TWTs In Orbit:  > 3500 (> 155 million hours,  Spot FIT Rate:  < 150)

For more information, please contact us.